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STOCK-BASED COMPENSATION (Tables) | 9 Months Ended
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Sep. 30, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Share-based Payment Arrangement, Expensed and Capitalized, Amount | The following table illustrates the effect of stock-based compensation on the unaudited condensed consolidated statements of operations:
| Three Months Ended September 30 |  | Nine Months Ended September 30
(in thousands) | 2023 |  | 2022 |  | 2023 |  | 2022
Research and development expenses | $ | 207 |  |  | $ | 355 |  |  | $ | 399 |  |  | $ | 977 |
Selling, general and administrative | 656 |  |  | 819 |  |  | 2,196 |  |  | 2,605 |
Discontinued operations* | — |  |  | — |  |  | — |  |  | (352) |
Total | $ | 863 |  |  | $ | 1,174 |  |  | $ | 2,595 |  |  | $ | 3,230 |
*Income from stock-based compensation is related to forfeitures.

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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